6218856144 has 60 divisors (see below), whose sum is σ = 17420961376. Its totient is φ = 2070950976.

The previous prime is 6218856109. The next prime is 6218856197. The reversal of 6218856144 is 4416588126.

It is a happy number.

6218856144 is a `hidden beast` number, since 6 + 2 + 1 + 88 + 561 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6218856144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132759 + ... + 173385.

Almost surely, 2^6218856144 is an apocalyptic number.

It is an amenable number.

6218856144 is an abundant number, since it is smaller than the sum of its proper divisors (11202105232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6218856144 is a wasteful number, since it uses less digits than its factorization.

6218856144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41704 (or 41695 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 6218856144 is about 78859.7244732696. The cubic root of 6218856144 is about 1838.9510546209.

The spelling of 6218856144 in words is "six billion, two hundred eighteen million, eight hundred fifty-six thousand, one hundred forty-four".